diff --git a/public/assets/css/loading.css b/public/assets/css/loading.css
index f91fef5..aea6b19 100644
--- a/public/assets/css/loading.css
+++ b/public/assets/css/loading.css
@@ -8,6 +8,10 @@
   background-color: #f2f2f2;
 }
 
+.loading_night {
+  background-color: #303133;
+}
+
 .loading-wrapper {
   position: fixed;
   top: 50%;
diff --git a/src/App.vue b/src/App.vue
index 50a4640..4efd1a1 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -5,7 +5,7 @@
 
 <script>
 import Loading from './components/Loading'
-import CodemirrorEditor from './components/CodemirrorEditor'
+import CodemirrorEditor from './view/CodemirrorEditor'
 export default {
     name: 'App',
     components: {
diff --git a/src/assets/images/light.png b/src/assets/images/light.png
new file mode 100644
index 0000000..ab702c1
Binary files /dev/null and b/src/assets/images/light.png differ
diff --git a/src/assets/images/night.png b/src/assets/images/night.png
new file mode 100644
index 0000000..193f117
Binary files /dev/null and b/src/assets/images/night.png differ
diff --git a/src/assets/less/theme.less b/src/assets/less/theme.less
new file mode 100644
index 0000000..46342c3
--- /dev/null
+++ b/src/assets/less/theme.less
@@ -0,0 +1,62 @@
+@nightBgColor: #333333;
+@nightPreviewColor: #1e1e1e;
+@nightHeaderColor: #3c3c3c;
+@nightCodeMirrorColor: #1e1e1e;
+@nightActiveCodeMirrorColor: gray;
+@nightFontColor: gray;
+@nightLinkColor: #8e9eb9;
+@nightLinkTextColor: #84868b;
+@nightBorderColor: #ffffff;
+@nightButtonBg: #1e1e1e;
+@nightButtonHoverColor: #84868b;
+.container_night {
+    background-color: @nightBgColor;
+    .CodeMirror  {
+        caret-color: @nightFontColor;
+        color: @nightFontColor;
+        background-color: @nightCodeMirrorColor;
+        box-shadow: inset 0 0 0 1px rgba(100, 37, 37, 0.102);
+    }
+    .preview {
+        background-color: @nightPreviewColor;
+        box-shadow: 0 0 70px rgba(0, 0, 0, 0.3);
+    }
+    .preview-wrapper {
+        background-color: @nightCodeMirrorColor;
+        box-shadow: inset 0 0 0 1px rgba(233, 231, 231, 0.102);
+    }
+    .cm-s-xq-light span.cm-variable-2 {
+        color: @nightFontColor;
+    }
+    .cm-s-xq-light .CodeMirror-activeline-background {
+        background-color: transparent;
+    }
+    .cm-s-xq-light span.cm-string {
+        color: @nightLinkColor;
+    }
+    .cm-s-xq-light span.cm-link {
+        color: @nightLinkTextColor;
+    }
+    .editor__header {
+        background-color: @nightHeaderColor;
+    }
+    .el-button {
+        color: @nightBorderColor;
+        background-color: @nightCodeMirrorColor;
+        border: 1px solid #eeeeee;
+    }
+    .el-button.is-plain:focus, .el-button.is-plain:hover {
+        background: @nightButtonBg;
+        color: @nightButtonHoverColor;
+        border: 1px solid @nightButtonHoverColor;
+        i {
+            color: @nightButtonHoverColor;
+        }
+    }
+    i {
+        color: #ffffff;
+    }
+    ::-webkit-scrollbar {
+        background-color: @nightCodeMirrorColor;
+    }
+}
\ No newline at end of file
diff --git a/src/components/codeMirror/header.vue b/src/components/codeMirror/header.vue
index ee2363c..1114dfb 100644
--- a/src/components/codeMirror/header.vue
+++ b/src/components/codeMirror/header.vue
@@ -1,24 +1,24 @@
 <template>
-    <el-container class="top">
+    <el-container class="top is-dark">
         <!-- 图片上传 -->
         <el-upload class="header__item" action="https://imgkr.com/api/files/upload"
             :headers="{'Content-Type': 'multipart/form-data'}"
             :show-file-list="false" :multiple="true" accept=".jpg,.jpeg,.png,.gif" name="file"
             :before-upload="beforeUpload">
-            <el-tooltip effect="dark" content="上传图片" placement="bottom-start">
+            <el-tooltip :effect="effect" content="上传图片" placement="bottom-start">
             <i class="el-icon-upload" size="medium"></i>
             </el-tooltip>
         </el-upload>
         <!-- 下载文本文档 -->
-        <el-tooltip class="header__item" effect="dark" content="下载编辑框Markdown文档" placement="bottom-start">
+        <el-tooltip class="header__item" :effect="effect" content="下载编辑框Markdown文档" placement="bottom-start">
             <i class="el-icon-download" size="medium" @click="downloadEditorContent"></i>
         </el-tooltip>
         <!-- 页面重置 -->
-        <el-tooltip class="header__item" effect="dark" content="重置页面" placement="bottom-start">
+        <el-tooltip class="header__item" :effect="effect" content="重置页面" placement="bottom-start">
             <i class="el-icon-refresh" size="medium" @click="reset"></i>
         </el-tooltip>
         <!-- 插入表格 -->
-        <el-tooltip class="header__item header__item_last" effect="dark" content="插入表格" placement="bottom-start">
+        <el-tooltip class="header__item header__item_last" :effect="effect" content="插入表格" placement="bottom-start">
             <i class="el-icon-s-grid" size="medium" @click="$emit('showDialogForm')"></i>
         </el-tooltip>
         <el-form size="mini" class="ctrl" :inline=true>
@@ -47,19 +47,23 @@
                 </el-option>
             </el-select>
             </el-form-item>
-            <el-tooltip content="自定义颜色" placement="top">
+            <el-tooltip content="自定义颜色" :effect="effect" placement="top">
             <el-color-picker v-model="selectColor" size="mini" show-alpha @change="colorChanged"></el-color-picker>
             </el-tooltip>
-            <el-tooltip content="微信外链自动转为文末引用" placement="top">
-            <el-switch class="header__switch" v-model="citeStatus" active-color="#67c23a" inactive-color="#dcdfe6" @change="statusChanged">
-            </el-switch>
+            <el-tooltip content="微信外链自动转为文末引用" :effect="effect" placement="top">
+                <el-switch class="header__switch" v-model="citeStatus" active-color="#67c23a" inactive-color="#dcdfe6" @change="statusChanged">
+                </el-switch>
             </el-tooltip>
         </el-form>
-        <el-tooltip class="item" effect="dark" content="自定义CSS样式" placement="left">
-            <el-button type="success" plain size="medium" icon="el-icon-setting" @click="customStyle"></el-button>
+        <el-tooltip class="item" :effect="effect" content="自定义CSS样式" placement="left">
+            <el-button :type="btnType" plain size="medium" icon="el-icon-setting" @click="customStyle"></el-button>
+        </el-tooltip>
+        <el-button :type="btnType" plain size="medium" @click="copy">复制</el-button>
+        <el-button :type="btnType" plain size="medium" class="about" @click="$emit('showAboutDialog')">关于</el-button>
+        <el-tooltip content="夜间模式" placement="bottom-start">
+            <div class="mode__switch" v-if="!nightMode" @click="themeChanged"></div>
+            <div class="mode__switch mode__switch_black" v-else @click="themeChanged"></div>
         </el-tooltip>
-        <el-button type="success" plain size="medium" @click="copy">复制</el-button>
-        <el-button type="success" plain size="medium" class="about" @click="$emit('showAboutDialog')">关于</el-button>
       </el-container>
 </template>
 
@@ -90,13 +94,20 @@ export default {
         };
     },
     computed: {
+        effect() {
+            return this.nightMode ? 'dark' : 'light'
+        },
+        btnType() {
+            return !this.nightMode ? 'success' : 'default';
+        },
         ...mapState({
             output: state=> state.output,
             editor: state=> state.editor,
             cssEditor: state=> state.cssEditor,
             currentFont: state=> state.currentFont,
             currentSize: state=> state.currentSize,
-            currentColor: state=> state.currentColor
+            currentColor: state=> state.currentColor,
+            nightMode: state=> state.nightMode
         })
     },
     methods: {
@@ -228,7 +239,7 @@ export default {
             downLink.click()
             document.body.removeChild(downLink)
         },
-        ...mapMutations(['clearEditorToDefault','setCurrentColor', 'setCiteStatus',
+        ...mapMutations(['clearEditorToDefault','setCurrentColor', 'setCiteStatus', 'themeChanged',
             'setHtml', 'setCurrentFont', 'setCurrentSize', 'setCssEditorValue', 'setWxRendererOptions'])
     },
     mounted() {
@@ -252,4 +263,19 @@ export default {
 .header__switch {
     margin-left: 8px;
 }
+.mode__switch {
+    margin-left: 24px;
+    width: 24px;
+    height: 24px;
+    background: url('../../assets/images/night.png') no-repeat;
+    background-size: cover;
+    transition: all .3s;
+}
+.mode__switch_black {
+    background: url('../../assets/images/light.png') no-repeat;
+    background-size: cover;
+}
+.top {
+    margin-right: 0;
+}
 </style>
\ No newline at end of file
diff --git a/src/main.js b/src/main.js
index 5312c50..ea3fd9b 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,6 +1,5 @@
 import Vue from 'vue'
 import App from './App.vue'
-import router from './router'
 import store from './store'
 import ElementUI from 'element-ui'
 import 'element-ui/lib/theme-chalk/index.css'
@@ -9,12 +8,12 @@ import 'codemirror/lib/codemirror.css';
 import "codemirror/theme/ambiance.css";
 import "codemirror/addon/hint/show-hint.css";
 import "codemirror/theme/xq-light.css";
+import "./assets/less/theme.less";
 Vue.use(ElementUI)
 
 Vue.config.productionTip = false
 
 new Vue({
-  router,
-  store,
-  render: h => h(App)
+    store,
+    render: h => h(App)
 }).$mount('#app')
diff --git a/src/router/index.js b/src/router/index.js
deleted file mode 100644
index a1898de..0000000
--- a/src/router/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-import Vue from 'vue'
-import VueRouter from 'vue-router'
-import Home from '../views/Home.vue'
-
-Vue.use(VueRouter)
-
-const routes = [
-  {
-    path: '/',
-    name: 'home',
-    component: Home
-  },
-  {
-    path: '/about',
-    name: 'about',
-    // route level code-splitting
-    // this generates a separate chunk (about.[hash].js) for this route
-    // which is lazy-loaded when the route is visited.
-    component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
-  }
-]
-
-const router = new VueRouter({
-  mode: 'history',
-  base: process.env.BASE_URL,
-  routes
-})
-
-export default router
diff --git a/src/store/index.js b/src/store/index.js
index 4dc19c4..f451bb3 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -21,7 +21,8 @@ const state = {
     currentFont: '',
     currentSize: '',
     currentColor: '',
-    citeStatus: 0
+    citeStatus: 0,
+    nightMode: true
 };
 const mutations = {
     setHtml(state, data) {
@@ -52,6 +53,9 @@ const mutations = {
         state.currentColor = data;
         localStorage.setItem('color', data)
     },
+    themeChanged(state) {
+        state.nightMode = !state.nightMode;
+    },
     initEditorState(state) {
         state.currentFont = localStorage.getItem('fonts') || config.builtinFonts[0].value
         state.currentColor = localStorage.getItem('color') || config.colorOption[1].value
diff --git a/src/components/CodemirrorEditor.vue b/src/view/CodemirrorEditor.vue
similarity index 94%
rename from src/components/CodemirrorEditor.vue
rename to src/view/CodemirrorEditor.vue
index 5484bd0..d521e2d 100644
--- a/src/components/CodemirrorEditor.vue
+++ b/src/view/CodemirrorEditor.vue
@@ -1,7 +1,7 @@
 <template>
-    <div id="app" class="container">
+    <div class="container" :class="{'container_night': nightMode}">
         <el-container>
-            <el-header class="top editor__header">
+            <el-header class="editor__header is-dark">
                 <editor-header
                     @refresh="onEditorRefresh"
                     @uploaded="uploaded"
@@ -53,9 +53,9 @@ import 'codemirror/addon/hint/css-hint.js'
 import '../scripts/format.js'
 
 import fileApi from '../api/file';
-import editorHeader from './codeMirror/header';
-import aboutDialog from './codeMirror/aboutDialog';
-import insertFormDialog from './codeMirror/insertForm';
+import editorHeader from '../components/codeMirror/header';
+import aboutDialog from '../components/codeMirror/aboutDialog';
+import insertFormDialog from '../components/codeMirror/insertForm';
 import {
     setFontSize,
     css2json,
@@ -93,7 +93,8 @@ export default {
             cssEditor: state=> state.cssEditor,
             currentSize: state=> state.currentSize,
             currentColor: state=> state.currentColor,
-            html: state=> state.html
+            html: state=> state.html,
+            nightMode: state=> state.nightMode
         })
     },
     created() {
@@ -207,7 +208,7 @@ export default {
         },
         // 左右栏同步滚动
         leftAndRightScroll() {
-            $('div.CodeMirror-scroll, #preview').on('scroll', function callback() {
+            $('#preview').on('scroll', function callback() {
                 clearTimeout(this.timeout)
 
                 let source = $(this)
@@ -246,6 +247,10 @@ export default {
 <style lang="less" scoped>
 @import url('../scripts/google-code-prettify/prettify.css');
 .main-body {
-    padding-top: 0;
+    padding-top: 12px;
+    overflow: hidden;
+}
+.container {
+    transition: all .3s;
 }
 </style>
diff --git a/src/views/About.vue b/src/views/About.vue
deleted file mode 100644
index 3fa2807..0000000
--- a/src/views/About.vue
+++ /dev/null
@@ -1,5 +0,0 @@
-<template>
-  <div class="about">
-    <h1>This is an about page</h1>
-  </div>
-</template>
diff --git a/src/views/Home.vue b/src/views/Home.vue
deleted file mode 100644
index 7d00042..0000000
--- a/src/views/Home.vue
+++ /dev/null
@@ -1,14 +0,0 @@
-<template>
-  <div class="home">
-  </div>
-</template>
-
-<script>
-// @ is an alias to /src
-
-export default {
-  name: 'home',
-  components: {
-  }
-}
-</script>